What's the point, ? The new road construction by PLA is close to LAC (don't know how much it has progressed). PLA gets what it wants, achieves its objective, and pushes India far away from its own position.
There are no easy answers to the question. India has followed an predominantly defensive approach towards China for decades. No difference between the BJP and the Congress Governments regarding the strategy.
Not making it political but if tomorrow an Congress Government comes to power in New Delhi certainly don't expect that India will launch an offensive against the Chinese and recapture all our land usurped by the Chinese.
Not going to happen. Because the Indian approach to China is the product of an consensus(almost) among the strategic community cutting across party lines.
Maybe we are biding our time and waiting for our country to gain enough economic and military strength. Now whether this is an good strategy or not can be debated.
Our history of non violence and ahimsa probably played an part in us seeking to avoid conflict. We were not born an Vietnam which defeated both an Superpower(US) and an large regional bully(China).
One valid reason could be that there is a large power differential between the two countries. China had and presently has an much greater industrial base than India.
Probably the biggest advantage that China gained was that it opened up its economy to the international business community(mainly the West) an couple of decades before India. As an result it gained enormously from Foreign Direct Investment and exposure to the latest technologies. For all of their sometimes manipulative policies the West did possess an edge over the rest of the world in innovation and competitiveness. There is quite a lot to be learnt from them.
And to the credit of the Chinese they managed to grow fast without mortgaging their country to the West. Not becoming an vassal of the West. They have managed to retain strategic autonomy and an independent foreign policy.
Something that India can emulate.
But India is catching up. An 10% plus economic growth rate (hope this happens) should see us grow much faster than China and help us close the GDP gap. We need the economy to grow substantially. And our Defence R & D and military industrial complex to balloon in capability. No war can be won only on imported weapons. We should create our own weapons and be in a position to add both quality and quantity to our defense matrix.
There should be no need to desperately seek imported weapons to match any new Chinese weapons system. Our military industrial complex should provide the answers to respond to any existing or future Chinese weapon system.
It might take some amount of time to reach that level of indigenous capability. The question is - can we afford to wait.
If public opinion doesn't want to wait and seeks an immediate answer to Chinese provocations then there is no other solution than to bring the nuclear weapons option on the table. History tells us that such an strategy may work. The NATO alliance countries were outnumbered by the Warsaw Pact countries by an ratio of at least 1:2 as far as number of conventional weapons were concerned. Instead of trying to match the Warsaw Pact in terms of numbers of conventional weapons they implemented an strategy of using tactical nuclear weapons to act as trip wires.
Any major conventional attack would be first responded to by the use of tactical nuclear weapons and which could possibly escalate to the use of strategic nuclear weapons.
It was an risky strategy but it worked. The idea was that an adversary who thinks that the costs of offence will be tolerable will realise that the actual costs could become unbearable. China will not like to risk Beijing or Shanghai for Arunachal Pradesh.
It might well stop the Chinese from taking India for granted and seriously deter their salami slicing strategy. But for it to work we would need to clearly define our red lines. And inform Beijing about what would trigger India into using tactical nuclear weapons on the border.
Ultimately it is Mutually Assured Destruction.
Do we have the guts to go for this strategy wherein nuclear weapons will become the bedrock of our defence strategy.